RANKING · 2024 ACS · 99 SHOWN OF 99

Most equal income distribution, Iowa counties

Iowa counties with the lowest income inequality, measured by the Gini index (2023 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDHighest median household income Lowest median household income Highest per-capita income Lowest poverty rate Highest poverty rate Most income inequality (Gini)

YEAR2010 2024

RANKPLACESTATEPOPINCOME INEQUALITY (GINI)VS 2000

01Monroe County, IAIA7,4060.383–

02Marshall County, IAIA39,8900.385–

03Buchanan County, IAIA20,8830.385–

04Butler County, IAIA14,0490.389–

05Jones County, IAIA21,2530.391–

06Madison County, IAIA17,2700.391–

07O'Brien County, IAIA14,2200.392–

08Warren County, IAIA57,3310.394–

09Grundy County, IAIA12,3610.394–

10Pocahontas County, IAIA6,8190.395–

11Tama County, IAIA16,7960.397–

12Harrison County, IAIA14,6230.397–

13Benton County, IAIA26,0040.397–

14Davis County, IAIA9,2300.398–

15Worth County, IAIA7,3380.398–

16Cedar County, IAIA18,3590.399–

17Boone County, IAIA26,7990.400–

18Louisa County, IAIA10,4160.403–

19Plymouth County, IAIA25,6970.407–

20Emmet County, IAIA9,1070.409–

21Sioux County, IAIA36,7740.409–

22Chickasaw County, IAIA11,6630.413–

23Iowa County, IAIA16,5040.413–

24Sac County, IAIA9,5250.413–

25Monona County, IAIA8,5390.413–

26Mills County, IAIA14,7930.414–

27Lyon County, IAIA12,3540.415–

28Greene County, IAIA8,6580.415–

29Palo Alto County, IAIA8,8990.416–

30Hancock County, IAIA10,5280.417–

31Allamakee County, IAIA14,2380.417–

32Clay County, IAIA16,2020.417–

33Muscatine County, IAIA41,8530.417–

34Kossuth County, IAIA14,3220.418–

35Union County, IAIA11,8290.419–

36Taylor County, IAIA5,8350.421–

37Buena Vista County, IAIA20,4490.422–

38Henry County, IAIA19,3490.424–

39Mahaska County, IAIA21,8800.424–

40Hardin County, IAIA16,4550.424–

41Howard County, IAIA9,4150.425–

42Bremer County, IAIA25,2960.427–

43Clayton County, IAIA16,8450.428–

44Pottawattamie County, IAIA92,9960.428–

45Crawford County, IAIA16,2370.428–

46Washington County, IAIA22,6670.429–

47Decatur County, IAIA7,6550.429–

48Floyd County, IAIA14,9010.433–

49Lucas County, IAIA8,8470.433–

50Marion County, IAIA34,1920.433–

51Guthrie County, IAIA10,7820.434–

52Osceola County, IAIA5,9800.434–

53Woodbury County, IAIA106,6490.436–

54Carroll County, IAIA20,3030.436–

55Ida County, IAIA6,7770.436–

56Polk County, IAIA516,5460.437–

57Hamilton County, IAIA14,9440.438–

58Des Moines County, IAIA38,0770.438–

59Delaware County, IAIA17,6740.440–

60Dallas County, IAIA118,4570.440–

61Clarke County, IAIA9,5740.441–

62Keokuk County, IAIA9,7970.441–

63Winnebago County, IAIA10,2510.442–

64Wapello County, IAIA35,2100.443–

65Webster County, IAIA36,8380.443–

66Dubuque County, IAIA99,3810.443–

67Jasper County, IAIA38,1530.444–

68Winneshiek County, IAIA19,7330.444–

69Clinton County, IAIA46,0020.445–

70Dickinson County, IAIA18,0770.446–

71Jackson County, IAIA19,2880.446–

72Poweshiek County, IAIA18,3680.446–

73Lee County, IAIA32,3060.447–

74Shelby County, IAIA11,6890.447–

75Mitchell County, IAIA10,6500.447–

76Linn County, IAIA232,0280.447–

77Ringgold County, IAIA4,6420.448–

78Black Hawk County, IAIA131,5320.449–

79Fayette County, IAIA19,0470.450–

80Appanoose County, IAIA12,0770.451–

81Cherokee County, IAIA11,3690.451–

82Calhoun County, IAIA9,5620.452–

83Scott County, IAIA175,2590.452–

84Cerro Gordo County, IAIA42,3720.456–

85Franklin County, IAIA9,8680.456–

86Audubon County, IAIA5,5090.458–

87Page County, IAIA14,8560.458–

88Humboldt County, IAIA9,4090.459–

89Adair County, IAIA7,4030.460–

90Fremont County, IAIA6,5220.465–

91Cass County, IAIA12,9600.465–

92Wright County, IAIA12,8010.467–

93Story County, IAIA101,2910.469–

94Montgomery County, IAIA10,0020.472–

95Wayne County, IAIA6,7380.478–

96Jefferson County, IAIA15,2910.480–

97Van Buren County, IAIA7,1310.488–

98Johnson County, IAIA160,0440.498–

99Adams County, IAIA3,6170.503–

SHOWING 1–99 OF 99

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES